Indonesian domestic helper Erwiana Sulistyaningsih (centre), accompanied by Hong Kong Airport Authority personnel, police and representatives from the Indonesian Consulate, walks out from a special exit upon her arrival at the Hong Kong Airport, on April 7, 2014. -- FILE PHOTO: REUTERS

HONG KONG (AFP) - A Hong Kong woman who allegedly tortured her Indonesian domestic helper in a case that sparked international concern is facing new charges relating to unpaid wages and owed holidays, a court heard on Tuesday.

Law Wan-tung, a 44-year-old mother-of-two, was arrested in January for seriously wounding Erwiana Sulistyaningsih, her former domestic helper.

Ms Sulistyaningsih said she suffered months of severe abuse in a high-profile case which has renewed worries over the treatment of domestic helpers in the southern Chinese city and sparked angry protests.

Time magazine on Friday named Ms Sulistyaningsih as one of the world's 100 most influential people, hailing her bravery in speaking out against her former employer.